Instrument for measuring or comparing the tension of wires and cables



NOV/24, 1931. J J gmg -r JR 1,833,195

INSTRUMENT FOR MEASURING OR COMPARING THE TENSION OF WIRES AND CABLES Filed May 31, 1923 I 10" ence'to the accompanying-drawingsin which 2 nd having a fixed' j w armn'ge t "55 v 5 2 Fig. 4 is a seetional viev v s'iinilar The' aw 8*isoperatedthrfoughf the i 26 h b strung "or d in th 5' t -i gi nient 11 and having a suitab1e handle for @5 5 k'no'wn ire; It also preferablyfino'lu'de's m rOlfieter isherefshown 'asapoint lgfigdt g haVing means'for'deflecting the Wire out-fof' i In order to deteiniine wheii the wirelf l is w Patented Nov 24, 1931 i I: t

j UNITEDIESTATES?- PATEN 'GFFICE, j 0 eme e enefit i" ulerly simple and .eflicientfinstrument for points.

int'ention has-,foriits obj'ecta particitsnzituraleouijse between such I measuring the; tension *ofwires or coinpar- 1designates:the hodyttvhieh'ieheifie l" ing the tension of'aJWireWit-h the known as'jha ing angulerly 'arranged ermsQfpto y t tension'of a kIIOWIl WiIG; :The invention con-V Vided Wlth meanS as hooks 31501 hooking over sists in: thenovel fea-tures'and in the cornbit e Wire orc'al Ole l at spacedapart pointsp In Y nations end: constructions hereinafter set the illustrated embodiment of thisdnstru forthand claimedfm e. 1: j ment the body isalso sho'wnas formedwith 6 JInd esc-ribin g this invention We have refer-1 HQIIYISE5 intermediate 0f the supporting 'iLTIIlS like=characters designate; the" corresponding; va ei wi h h ih 0 h j f Y g parts in all the- 'fi'gure'sw. i v- 5 a b'lo'ckfl fol? engaging the Wine. Figure 1 is an elevation of one embodi-- Themean f rQ fle t ng the i ag ment-of thistinstrumentishowing the sariie the block 7 "coinpriseseclamp'onjevvi 8'fop: 1 e 1 I5 applied to a Wire 01% eablezbeing tested." PQ b P findmovabl'e QW n ieo i Figure 2' ista n enlarged sectionalQvi'ewhn fro n theseme n opde to clamp-'the fwiret line 2*2, Figure 1. f1; i Y I agal nst the block 7,=-th1 v aw8heing pressed? Fig'ufe 3 isen enlarged"sectioned-View on y? sprl'ng 9 end the a bemg; operated -1in'e33, Figure -'-t h'roughithesprlng9. 1 I f noth for f m 'in tim, 1. 9- by" means here illustreted as a threajded g,

This instrument'is particularly adapted to? 11 01 serew thread1ng through the 7 determine or compare thetension 'of ele tricdlete' P Q the body l a'nd thrusting i 7 power cable$ and the like-after the-esibles tgone end again pmng Seat ore-Tenth.

thereof, inorder that,if necessary, thetem Wheel-10 a its 1 1 TThQJ iW 8 1311190v Th s instrumeht"fomneasuringofcOmPari h u Prm b m nt! f it ing the teneion o'f'wires :eomprise'smeans for; sq l Alsulltable m q 'te s q e di deflecting a portion ofthe wire out f'its w t n e 'q fiod rmg t am unt natural bourse and means for measuring the 0f OY I 'QUl O h NW8 t0 d e amount of deflection or the force i'equiredito" the ege i t he on b i '7 0 efiect such deflection, thereby" forming a' basi's on h Q- P g 1wf t"iq ireq i di for eomparisol'i with the known tension ofat m 'l the WW Sj 4-;i Thi 1 means forqindicating when the :wire 'is de-" fl hqja n ng'wi h callibretionsor i fleet-ed; as an electroresponsive'device-con; a scale on'the huhjlfl of"thefwheel lQahdif;i nected-gin' :ga' normally: open circuit which is fe t l re q s'b g fled yd er ta 11 r r elosedj'by thedeflection'ofsthe wire Whenthe l fw f o w l p t fi P 31639? Y'Wire :reaches a predetermined point mats: turning ofthe Wheel '=1'()0z;2 t' 1 serew'lUwe .1 d'eflection,"and ilsomeans for incheating the min-number ofturns"willfbefrequiiredtoI n-fl 7 amount ofthe deflection-or the forcerequired sionithe spring 9 uflieientlytothiustth jaw' t to effect such defleetionn'jTheilluetmted ein-- 8"agztinst the Wire tihd-Edfletfitout of its f with the block? bodiment of injy in-v'ention eo'mprises' a body' natural course into "contito V deflecteda predetermined amount, an electrothe wirehas been brought-againstthe contact v fis closed through the wire,

responsive device asea buzzer is connected in a normally, broken electric circuit which 1s been deflected a{ predetermined amount that is'in thisembodiment of'my invention when block 7. 1The contact block 7 is insulated from "the jaw 6 and, one branchlGof the circuit is connecteclto saidblock and the other branchto the. aw 8 or to the wire t, thus scale-onthe hub 1 L from-a wire'of known-ten- V with the known tensio strument' on such wire tion of wire between buzzer- 'sounds. If the-readingisflnow the .1 sameas bef re,

" sion, ifjth'e "reading is dilierent, the tension a In ,Figure isv shown another storm of sion, the wire under, test canbejcompared by placing the in and deflecting the por the hooks 2 until the of the {wire under'test can be varied, r

to engage the wire; and limit the deflection thereof, randnc; employed to show when the apredeterminedamount;

In this form of-instru'm'ent shownin-Figure 4, the'body 2-1 is substantially. the" same as shown in the Figures tobringth'e prime mover-against the-stop, or

the-force requlred to tension a springftode -l gflectgthej wire when the prime mover vis broughtaga-inst the stop, is, measured or indi- 'j j prime ;mo ver or screw i catedr 23 isthje prime mover as ascrew' threading,

, through the intermediateportionof the body 4" 21 at an angle togthejcourse, of the wire.

is;the .handle asja wheel on the outer'en'd of:

' v the screw,

the hub f deflection of th'ecwire Within the capacityiof t 25 being a stop. 26 4- the instrument, the' poin is amember or b'lock which thrusts againstthe' 'wire,' the block preferablyhaving agstem 27 i slidablylfitted an axial bore in-the screw.

5. 28 ,isi a blockior springab'utment associatedi ,uWibllilifSQIGW and swiveled at the inner end ei b fimei V rie d by;- one n calibrated tojindicate l thei amount of defiec-j: 'tion or compressiono'f thespring, required to i handle24; of he screw'en'gages thestopJ -"Z I 7 the'reof,'3.thisabutmentbeing-opposed tothe;

"f l block 526'. 29fJisf,a'p coxnpression;spring cons "lined betweenthe member'or the block--26 and V 28;'.a 30 i a n ea qr c re w erer sa arrangedz l deflect the wire when 7 the spring 29 which" in when the wire has r v I 'sary the wiresare of the same ten:

with means V this V instrumentinwhich'no stop or contact is used electror'e'sponsive device, is wn'e-is deflected v 's -limitedv by 'aIfiXed 5 stop and thefor'ce, requ red to deflect the wire mem to; deflect, the wirefoutof its normal course- 24 and press the same against the; contact, an

"the -'wheel abutting] against the body at 25 when the screw is "turnedjtoits'full extent to effect the greatestx l i m b j d j di ingthe amountof movement required of the Turning of the handle 24 'compresses the sion of the spring,

turn deflects the wire 22 i out of its course. The amount of compres- I I as shownjby the indicator 30 when the handle 24: is brought against the;

stop 25, serves as a basis forcomparison with 1 a reading taken wire of known tension.

What. I claim is: e

1. An instrument for measuring the tension from theinstrument from a a" of wires comprising albody provided with I means for; engaging the wire at'spa'ced apart points and with acoritactlbetween.saidipoints 7 and out of alinement member opposed; to said contact, and; ar-' ranged to deflect thewire and press it against for, m i the mpin r the I contact, means.

therewith, a clamping member including a spring acting against the latten and; an-indicator dependent on the V V a: 7

amount of compression of the spring necesto defiectjthe'wiire against the contact. i

. :2;]An instrument for determiningthe ten; i sion; of wires comprisingzza body" provided closethecircuit,

of'wires comprising-a body s provided with for 5 engaging the wire at spaced apart points, and fineansfor deflecting the, i portion ofthe wiret-betweenjsaid points, an a electric circuit'havinganelectro-responsive; device therein, such circuit being normally 1 broken and" arranged to' be,;-,closed through 1 thefwire when the wire .is deflected a deter-' mined amount, and indicator means depend- I entjon the force required to. defiect the wiretoy: 1,2 and 3but the deflec tion of the wire 221s not limited by a stop ora; v fixed On the contrary movement of the supports having means for engaging the wire at spaced apart points,a contact carried by thebody between saidpoints and out of ali ne-J 1 and in'the' path of the par-1; z

ment therewith tion ofi'the wirebetween said :points, when deflected out ofits natural course, aclampi-ng beer, opposed to the contactand operable electric circuit; havingone branch connected no 1 to,the con tact vanditsother branchtoithe' clamping member, an electro-responsive de-I..

vice in "said circuit, means ,for; moving a the V for show;-,

troresponsive device. "1

v 7 4L An instrument 1-15 operating meansjto press thelwireagainst the; contactandclose'thecircuit through the elec-Z w n i Points rout "of: its normal fcourse',

a stop carried'by' the body-f and arranged to-'- engage the wireto limit-thegdcflectionthereof and 'me'a'nsl for indicating .ithef itorce necessary 1 to deflect thew-ire'against the'stbp',sa'id mean'gyi I being? dependent upon the tomerrequired to 1 efie t} thesdefl etion ptth' wir a'gainst the 5. An instrument formeasuring the tension I of Wires comprising a,- body provided With supporting means for engaging the, wire at spaced apart points, a fixedcontactcarried by Y I the body, means carried by the body and act-- ing on the Wire between said points to deflect the portion thereof between said points 7 against said contact, and an indicato'r 'foi" showing the forcerequired to deflect the wire 1 into engagement Withthe Contact; I

In testimony whereof, I' have hereunto o p in the county of Erie, and State of NewrYork, this 7th day signed my name, at Hamburg,

of May, 1923.

JOHN J. ALBRIGHT, JR. 5 

